* {
    margin: 0;
    padding: 0;
}

.container-yiyan {
    width: 100vw;
    height: 100vw;
    background: url('http://pic1.win4000.com/tj/2020-07-07/5f0434b008d05.jpg');
    background-size: 100%;
    position: relative;
}

.mask {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.content {
    width: 540px;
    height: 160px;
    position: absolute;
    left: 525px;
    top: 180px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-size: 24px;
    color: #fff;
    font-family: 'microsoft yahei';
}

.text {
    width: 300px;
    height: 200px;
    margin: 20px auto;
    /* border: 1px solid red; */
}

.top {
    text-align: left;
    letter-spacing: 1px;
}

.bottom {
    text-align: right;
}